Question

我在下面给出的JAVA中编写的webdrive代码在FF上工作正常但是相同的代码在使用IE11运行时出错。你能帮忙找出为什么会这样吗？我的IE打开了，它也加载了网站（我确实启用了IE11的保护模式以顺利运行它）但在此之后它无法识别该元素。你可以评论IE驱动程序的行和取消注释FF驱动程序的行，代码将执行没有任何问题。

我的代码：

WebDriver myD = null;
    File file = new File("C:/Users/pritik/Desktop/WebDriver/Drivers/IEDriverServer_x64_2.43.0/IEDriverServer.exe");
    System.setProperty("webdriver.ie.driver", file.getAbsolutePath());
    myD = new InternetExplorerDriver();

//  myD= new FirefoxDriver();

    myD.navigate().to("http://lp2domapptst.lpdomain.com:10000/ucl/login/jsp/universal_login.jsp");
    String a;
    a= KW.waitTime("3000");
    WebElement we = myD.findElement(By.xpath("//input[@name='j_username']"));
    we.sendKeys("test");

    we = myD.findElement(By.xpath("//input[@name='j_password']"));
    we.sendKeys("test");

    myD.findElement(By.xpath("//button[@name='btnEnter']")).click();

我得到以下例外：

org.openqa.selenium.InvalidSelectorException: The xpath expression '//input[@name='j_username']' cannot be evaluated or does notresult in a WebElement (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 94 milliseconds
For documentation on this error, please visit: http://seleniumhq.org/exceptions/invalid_selector_exception.html
Build info: version: '2.43.1', revision: '5163bce', time: '2014-09-10 16:27:58'
System info: host: 'cod8PKOTHAVALE', ip: '10.30.75.6', os.name: 'Windows 8', 

os.arch: 'amd64', os.version: '6.2', java.version: '1.7.0_40'
Session ID: d56eacc2-4739-4017-bb00-c06b01930d91
Driver info: org.openqa.selenium.ie.InternetExplorerDriver
Capabilities [{platform=WINDOWS, javascriptEnabled=true, elementScrollBehavior=0, ignoreZoomSetting=false, enablePersistentHover=true, ie.ensureCleanSession=false, browserName=internet explorer, enableElementCacheCleanup=true, unexpectedAlertBehaviour=dismiss, version=11, ie.usePerProcessProxy=false, cssSelectorsEnabled=true, ignoreProtectedModeSettings=false, requireWindowFocus=false, handlesAlerts=true, initialBrowserUrl=http://localhost:25808/, ie.forceCreateProcessApi=false, nativeEvents=true, browserAttachTimeout=0, ie.browserCommandLineSwitches=, takesScreenshot=true}]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:204)
    at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:156)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:599)
    at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:352)
    at org.openqa.selenium.remote.RemoteWebDriver.findElementByXPath(RemoteWebDriver.java:449)
    at org.openqa.selenium.By$ByXPath.findElement(By.java:357)
    at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:344)
    at testOrder.myTest(testOrder.java:46)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

Answer 1

试试这个：

myD.navigate().to("http://lp2domapptst.lpdomain.com:10000/ucl/login/jsp/universal_login.jsp");
String a;
a= KW.waitTime("3000");
WebElement we = myD.findElement(By.name("j_username"));

Int timeoutInSeconds = 10;
WebDriverWait wait = new WebDriverWait(mD, timeoutInSeconds);
wait.until(ExpectedConditions.visibilityOfElementLocated(By.name("j_username"));

we.sendKeys("test");

我只能假设IE无法看到该元素，因为DOM可能已被操纵。

Answer 2

按名称查找input ：

WebElement we = myD.findElement(By.name("j_username"));

我的webdriver代码在FF上正常运行但在IE11上出错

2 个答案: